The latest supported devices list includes the Linkind Motion Sensor (model ZS1100400) but when attempting to discover/pair the HE sees the device it never gets past “initializing,” so it never gets added as a Generic Zigbee Motion Sensor (no temp) driven device.
I don't know what you need to do to pair this device, but with Xiaomi/Aqara devices, sometimes they do the same thing.
To get round this, when they get in the initialising state I press the button a few times with a couple of seconds gap and this seems to do the trick. I think this causes the device to send its fingerprint again. Not sure though.
Might be worth a try. Good luck.